CLEANUP: quic: remove useless check on local UNI stream reception

The MUX now provides a single API for both uni and bidirectional
streams. It is responsible to reject reception on a local unidirectional
stream with the error STREAM_STATE_ERROR. This is already implemented in
qcc_recv(). As such, remove this duplicated check from xprt_quic.c.
diff --git a/src/xprt_quic.c b/src/xprt_quic.c
index f3a5934..d16fee5 100644
--- a/src/xprt_quic.c
+++ b/src/xprt_quic.c
@@ -2540,12 +2540,6 @@
 			struct quic_stream *stream = &frm.stream;
 			unsigned nb_streams = qc->rx.strms[qcs_id_type(stream->id)].nb_streams;
 
-			if (qc_is_listener(ctx->qc)) {
-				if (stream->id & QUIC_STREAM_FRAME_ID_INITIATOR_BIT)
-					goto err;
-			} else if (!(stream->id & QUIC_STREAM_FRAME_ID_INITIATOR_BIT))
-				goto err;
-
 			/* The upper layer may not be allocated. */
 			if (qc->mux_state != QC_MUX_READY) {
 				if ((stream->id >> QCS_ID_TYPE_SHIFT) < nb_streams) {